An organic compound [ A ] C 4 H 11 N , shows optical activity and gives N 2 gas on treatment with HNO 2 . The compound [ A ] reacts with PhSO 2 Cl producing a compound which is soluble in KOH . The structure of A is :

Step-by-step solution

Given: 1. Compound is optically active ⇒ contains chiral carbon/Nitrogen. 2. Compound liberates N 2 gas with HNO 2 ⇒ It is primary amine 3. Compound reacts with PhSO 2 Cl and the product is soluble in KOH - It is a primary amine. Option (A) and (D) are primary amines. But only option (D) satisfy all the above conditions.